JPS607019Y2 - female electrical connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a female electrical connector housed in a connector housing.

Conventionally, there is a female electrical connector of this type as shown in FIG.

That is, following the electric wire insulation coating crimping piece 2 and the conductor crimping piece 3 formed by bending both sides of the bottom wall 1 upward, the side wall has a window hole 4a formed by bending both sides of the bottom wall 1 upward. 4, a top wall 5 formed by bending the tips of the side walls 4 inwardly, and an extended tip (narrow width) of the bottom wall 1 folded back into a U-shape or V-shape to form the side wall. 4 and the elastic piece 6 which faces into the upper wall 5 and has a lateral protrusion 6b that engages with the window hole 4a, and a connecting portion with a mating male electrical connector (not shown) is integrally molded. However, since the radius of curvature or the folding angle of the folded portion 6a (the base is indicated by the reference numeral) of the elastic piece 6 is small, the folded portion 6a may break due to stress concentration caused by the insertion and removal of the male electrical connector. , side protrusion 6b and window hole 4
Although it is possible to prevent the risk of the elastic piece 6 separating from the electrical connector due to engagement with the male electrical connector, it becomes impossible to maintain the desired contact pressure with the male electrical connector, and the elastic piece 6 is pressed Due to the molding process, the material often suffers from poor contact with the male electrical connector due to stress and strain in the material itself.

In view of the above drawbacks, the present invention has been developed to maintain the elastic piece itself in its initial state even if the folded part of the elastic piece is broken, and to prevent the contact pressure with the male electric connector from decreasing. Its purpose is to provide a connector.

The invention will now be explained with reference to one embodiment shown in the drawings.

As shown in the perspective view of FIG. 2 and the cross section taken along the line X-X in FIG. A side wall 10 formed by bending both sides of the bottom wall 7 upward, an upper wall 11 formed by bending the tips of the side walls 10 inwardly, and an extended tip (narrow width) of the bottom wall 7. ) is folded back to form the side wall 10 and top wall 11.
It is almost the same as the conventional example shown in Fig. 1 in that the almost box-shaped connection part with the male electrical connector (not shown) consisting of the elastic piece 12 inserted therein is integrally molded, but the main feature of the present invention is that The structure is as follows.

That is, (1) the elastic piece 12 has a pair of folded portions 12a folded back at an angle of <180° so as to contact the bottom wall 7;

(2) A first stopper piece 13 is cut and raised perpendicularly from the bottom wall 7 between the pair of folded portions 12a.

(3) The elastic piece 12 is formed into a chevron shape, and the top portion 1
2b and the upper wall 11 is set to be slightly smaller than the thickness of the male electrical connector blade, and the free end is provided with the bottom wall 7.
A sliding portion 12c on the surface is molded.

(4) A second stopper piece 14 is cut perpendicularly from the bottom wall 7 opposite to the rear of the sliding part 12c (the direction in which the sliding part 12c of the elastic piece 12 extends when the male electrical connector is inserted). It must be raised and molded.

In the male electrical connector of the present invention having the above configuration, when the male electrical connector blade is inserted, the sliding portion 12c slides to the right as the angular top portion 12b of the elastic piece 12 is displaced downward. (The folded part 12a is the first stopper piece 1
3), the sliding portion 12C contacts the second stopper piece 14 and presses the top portion 12b against the blade to complete the connection with the desired contact pressure. This is what we do.

Even if the folded portion 12a of the elastic piece 12 breaks due to stress concentration as described above, the elastic piece 12 does not move in the front-back direction until the first. Second double stopper piece 13.14
The movement in the vertical direction is prevented by the bottom wall 7 and the top wall 11, and the movement in the left and right direction is prevented by the side wall 10 and the first stopper piece 13. There's nothing to do.

Furthermore, even if the male electrical connector blade is inserted, both ends of the chevron-shaped elastic piece 12 are connected to both the first and second stopper pieces 13.
14, the function of applying contact pressure at the time of escape of insertion and completion of insertion is not lost, so the reliability of the connection can be improved.

As described above, the elastic piece of the present invention has one end folded back at an angle of <180° so as to contact the bottom wall, the middle part formed into a chevron shape, and the free end part formed as a sliding part on the bottom wall surface. With a simple structure in which a first stopper piece and a second stopper piece facing the sliding part are respectively cut and formed from the bottom wall in the folded part, breakage due to stress concentration occurs in the folded part of the elastic piece. It is also possible to maintain the initial state without detaching from the connector and connect it to the male electrical connector blade with the desired contact pressure. This has the effect of preventing the force from decreasing and being protected from external forces since the elastic piece is inserted into the box-shaped connection part.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional female electrical connector, Fig. 2 is a perspective view of a female electrical connector according to the present invention, and Fig. 3 is a perspective view of a female electrical connector according to the present invention.
-X-ray cross-sectional view 12...Elastic piece, 12a...Folded part, 12b...Top part, 12c...Sliding part, 13... Song first stopper piece, 14...second stopper piece.

Claims (1)

[Scope of utility model registration request] The connection part with the mating male electrical connector consists of a nearly box-shaped part formed from a bottom wall, a pair of side walls, and a clay wall, and an elastic member inserted into the box-shaped part by folding back the extended end of the bottom wall. The elastic piece has a pair of folded parts that are folded back at an angle of <180° so as to touch the bottom wall, and is formed into a chevron shape facing the top wall, and the bottom wall is formed between the pair of folded parts. A first stopper piece is cut and formed from the bottom wall, and a second stopper piece is cut and formed from the bottom wall facing the free end sliding portion of the elastic piece.
A female electrical connector characterized in that each stopper piece is provided.